信阳稻田主要杂草群落消长规律的研究

Studies on the Deerea-increasing Law of the Main Weed Communities in the Rice Field of Xinyang

对河南信阳稻田杂草群落进行了调查研究,结果表明:信阳稻田共有39个杂草群落,比较常见的有26个群落,其中沉水杂草4个群落;漂落杂草3个群落;浮叶杂草2个群落;挺水杂草8个群落;湿生杂草9个群落.并摸清了杂草群落的消长规律,为稻田杂草防治提供了科学依据。

Xinyangis the main area of rice production of Henan.Its condition of rain and heat is proper to the growth of rice.But the condition is also proper to re- production of weeds which affect directly and seriously the rice yield and gu- ality.Among 39 weed communities,26 communities are widely distributed. The aim of the study is to contribute the scentific base to controlling the we- eds.